20451870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2011}}^1$

素因数の和:2137

約数の個数: 48

約数和(自身を含む): 53672112

約数和(自身を除く): 33220242

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 113, 226, 339, 565, 678, 1017, 1130, 1695, 2011, 2034, 3390, 4022, 5085, 6033, 10055, 10170, 12066, 18099, 20110, 30165, 36198, 60330, 90495, 180990, 227243, 454486, 681729, 1136215, 1363458, 2045187, 2272430, 3408645, 4090374, 6817290, 10225935, 20451870]

約数ペア:

[(1, 20451870), (2, 10225935), (3, 6817290), (5, 4090374), (6, 3408645), (9, 2272430), (10, 2045187), (15, 1363458), (18, 1136215), (30, 681729), (45, 454486), (90, 227243), (113, 180990), (226, 90495), (339, 60330), (565, 36198), (678, 30165), (1017, 20110), (1130, 18099), (1695, 12066), (2011, 10170), (2034, 10055), (3390, 6033), (4022, 5085)]